spiel



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(No Model.) A. SPIEL.

PETROLEUM ENGINE.

N. PETERS. Pholo-lifimgnphen Washingloll, D. Q

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A.- SPIEL.

PETROLEUM ENGINE.

ted Feb. 14, 188 8.

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' A. SPIEL.

I PETROLEUM ENGINE.

No. 377,866. Patented Feb; 14,1888.

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* NITED STATES PATENT OFFICE.

ADOLF SPIEL, or BERLIN, GERMANY.

PETROLEUMENG.INE.

SPECIFICATION forming part of Letters Patent No. 377,866, dated February 14, 1888. Application filed June 30, 1887. Serial No. 242.946. (No model.)

To all whom it may concern.-

Be it known that I, ADoLr SPIEL, of Berlin, Germany,have invented'certain new and useful Improvements in Petroleum-Engines, of which the following is a full, clear, and exact descrip- The obj eet of my invention is to provide certain new and useful improvements in the petroleum-engines for which I filed an application for Letters Patent on the 13th day of May, 1887, Serial No. 238,152.

The invention consists in the construction and arrangement of certain parts and details and combinations of thesame, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

' Figure 1 is a side elevation of my improvement with parts in section. Fig. '2 is a plan View of the same with the cylinder in section. Fig. 3 is an enlarged sectional plan view of the cylinder-head and its connections, and Fig. 4 is an end elevation'of the same. Fig. 5 is a face view of the cam for operating the oilpump and the igniting-valve, and Fig. 6 is an enlarged sectional end elevation of the oilpump mechanism on the line av a: of Fig. 1. Fig. 7 is a plan view of the same. Fig. 8 is an enlarged sectional elevation of the ignitingpipe and connections.

On a suitablyconstructed base, A, is mounted the engine-frame B, which supports the cylinder D, in which operates the piston 0, connected, by the pitman O and the crank-arm C, with the main shaft E, carrying theusual flywheel and pulley connected with the machinery to be driven. On the main driving-shaft E is secured the gear-wheel E, which meshes into the gear-wheel" E secured to the auxiliary shaft b, which is rotated once for every two revolutions of said main shaft E.

The auxiliary shaft bis provided with a cam,

formed on the upper end of the pitman c,

pivotally connected at its lower end with the pump'rod d of the pump d, fastened on the base A and of any suitable construction. The length of the stroke of the pitman 0 can be regulated by a screw, r, screwing in the upper end of the pitman-head c and extending into the vertical slot 0, so that the eccentric pin f strikes against said screw 7' in its upward motion, thereby lengthening or shortening the stroke of the pitman 0 according to the distance which said screw 1 projects into the vertical slot 0. Y

The oil-pump d is connected with the lower end of the oil-reservoir :0, located inside of the base A. The aperture connecting said reservoir m with said pump (1 can be increased or diminished by a valve, '0, held in a normal closed position by a spring, t and connected with the spindle 12, having its bearing in a tube, 1), held on the outside of the base A. The spindle 12 projects beyond the upper end of the tube 12, and passes through the slotted projection a, carrying on top a collar, o, held loosely on the spindle o, and adapted to engage I a nut, o screwing on said spindle 'v. The projection u is placed above a pin, 3/, secured to the .pitman 0 so that the latter, in its upward movement, engages said projection u, and

thereby raises the spindle 12, so that the valve] 1; establishes connection between the oil -reservoir ac and the pump 61. The oil can then flow from the reservoir a: into the pump (1, and

this amount of oil is forced out of the pump by a downward movement of the pump-rod 01 into the pipe a, extending upward and leading to a heating-pipe, p, opening into the'igniting-pipe 19, located at the rear end of the cylinder D.

The governor R is located on the base A and operates on the horizontal sliding shaft R, carrying a disk, u", engaging the loop u,con nected with the projection u, so that when the governor-balls fly out said shaft R is moved inward, carrying along said loop to and the projection u, so that the latter cannot be engaged by the pin 3 of the pitman c and the valve 1; remains closed until the speed of the engine diminishes and the governor again pushes the shaft 'R', the loop a, and the pro-x jection u outward, so that the pin 3 can engage the projection to, as above described. The projection u is raised a suitable distance, which is limited by the nut o before the valvespindle 'v and the valve o are raised.

It will be seen that the governor, which is connected with the spindle o, as above de scribed, causes an upward movement of said spindle when the supply of oil from the reservoir m to the pump (1' is shut off, so that the pump cl cannot force any oil through the pipe a into the heatingpipe 12, thus diminishing the speed of the engine and causing the governor to again place the valve 12 in such a position as to admit oil regularly into the pump (1' at the upward motion of the pitman c striking with its pin y against the projection u, as above described.

The auxiliary shaft 1) imparts a longitudinally-sliding movement by its cam m to the shaft b, mounted in suitable bearings secured to the engine'frame B and the head F at the rear end of the cylinder D. Said cam m iniparts a sliding motion to said shaft 1) in the direction of the arrow 0, and the return move ment of said shaft 6 is accomplished by the spring 8, pressing with one end against a shoulder on said shaft 2) and with its other end against one of the fixed bearings of said shaft b. The shaft 1) connects at its outer end with a lever, 12*, supporting the valve 11 located in the cylinder-head F and adapted to permit the escape of the burned gases after the explosion in the cylinder D.

On the outer end of the shaft b is also formed an incline, as plainly shown in Fig. 8, which operates against the valve n, located in the cylinder-head F. The valve n is adapted to be Seated at its inner end, a, on the aperture 0, leading into the L-shaped channel 0, leading atone end 0 into the interior of the cylinder D, and at its other end leading into the pipe h, provided with a valve, 9, opening inward. Said pipe hsupplies the necessary atmospheric air for forming part of the mixture for the explosion.

The valve 12 in its ordinary position is held against its seat by the spring 12*,- but when the air in the cylinder D is compressed on the return-stroke of the piston 0 then the compressed air forces said valve outward until it rests against the stop a. The inner end, it, of the valve n has then opened communication between the channel 0 and the igniting pipe or tube 19, which is secured to the outer face of the cylinder-head F, and into which opens the pipe 19, above described. From the rear end of the igniting'pipep leads the pipe a into the channel 0, and said pipe a is provided with a valve, a which opens inwardly to admit the vaporized oil into the cylinder, but

closes on a backward pressure from the said' cylinder.

The oil from the reservoir 00, after being pumped through the pipe a, passes into the pipe 1), which opens into the middle of the igniting pipe or tube 19, and which pipe 1) is surrounded by a tube or chimney, 19 which has its interior heated by a lamp, as shown in Fig. 1, or it contains a body of highly inflammable character, which is held in such a state as to heat the pipe 12 red hot, so as to ignite the mixture in the cylinder whenever it is desirable that an explosion should take place. The oil passing through this heating-pipe p is heated to a considerable degree, generally so as to vaporize, and finally passes into the pipe aand into the channel 0 after its temperature has been raised considerably.

The operation is as follows: The piston Gin the cylinder D, when traveling forward, sucks in the air through the air-pipe h, and at the same time a quantity of oil is forced into the channel 0', through the pipes aa,by the pump d, and the two aremixed insaid channel 0, and this mixture passes into the cylinder through the opening 0. On the return-stroke of the piston O the mixture in the cylinder is compressed; but when the piston is near the end of its stroke the cam on the shaft b releases the valve 01, which is thus forced outward until it rests against the stop n by the pressure of the com pressed mixture in said cylinder. Part of this compressed mixture now passes into the igniting-tube p, and is ignited by the red-hot pipe 1), connected with said igniting-tube. The

' entire charge in the cylinder D is thus ignited,

causing an explosion, the force of which propels the piston forward and imparts motion to the driving-shaft E. On the return-stroke of the piston Othe valve n is again seated on the opening 0,and the products of combustion are forced outward through the valve 1). The oil-pump d draws oil from the reservoir a: at the last return movement of the piston, and again forces the oil into the channel 0 on the forward motion of the piston, as above described. Thus it will be seen that the piston makes two complete strokes to one movement of the oil-pump. The construction of the oil-pump and the transmission of the oil from the pump to the cylinder are different from the construction shown in my previous application before referred to, and are not claimed in the same.

Having thus fully described my invention, I

claim as new and desire to secure by Letters Patent 1. In a petroleum-engine, the combination, with a cylinder and a piston traveling in said cylinder and imparting a rotary motion to the main driving-shaft, of an auxiliary shaft, 1), connected with the main driving-shaft, and making one revolution to two strokes of said piston,the eccentric-pin), formed on said auxiliary shaft b, the pitman c, operated by said eccentric-pin f, and the oil-pump d, operated by said pitman 0 substantially as shown and described.

2. In a petroleum-engine, the combination, with a cylinder and a piston traveling in said cylinder and imparting a rotary motion to the main driving-shaft, of an auxiliary shaft, 1), connected with the main driving-shaft, and making one revolution to two strokes of said piston, the eccentric-pin f, formed on said auxiliary shaft b, the pitman 0, having a vertical slot, 0, into which said eccentric pin f extends, the screw r, against which said eccentrio-pin f operates, and the oil-pump d, oper- I with a cylinder and a piston traveling in said ated by said pitman c, substantially as shown and described. Y

3. In a petroleum-engine, the combination,

cylinder, of a main driving-shaft receiving a rotary motion from said piston, the auxiliary shaft b, receiving a rotary motion from said main driving-shaft and making one revolution to two revolutions of said driving-shaft, the cam m, secured on said auxiliary shaft b, the rod b, receiving an outward motion from said cam m,the spring 8, imparting a return movement to said rod b, said rod b being adapted to open the outlet-valve b and to close the igniting-pipe p by thevalve n, substantially as shown and described.

4. In a petroleum-engine, the combination,

with a cylinder and a piston traveling in said cylinder, of a main driving-shaft receiving a rotary motion from said piston, the auxiliary shaft b, receiving a rotary motion from said main driving-shaft and making one revolution to two revolutions of-said driving-shaft, the cam m, secured on said auxiliary shaft b, the rod b, receiving an outward motion from said cam m, the spring 8, imparting a return movement to said rod b, the valve 12, operated by said rod b and closing the connection between the igniting-chamber and the cylinder, substantially as shown and described.

5. In a petroleum-engine, the combination,

'with a cylinder and a piston traveling in said cylinder, of a main driving-shaft receiving a rotary motion from said piston, the auxiliary shaft b, receiving a rotary motion from said main driving-shaft and making one revolution to two revolutions of said driving-shaft, the cam m, secured on said shaft b, the rod b, receiving an outward motion from said cam m, the spring 8', imparting a return movement to said rod b, the leverb operated by the extreme outer end of said rod b, and the valve b supported by said lever b and opening at the second return-stroke of said piston, so as to permit the escape of the burned gases, substantially as shown and described.

6. In a petroleum-engine, the combination, with the auxiliary shaft b, provided with the cam m, carrying the eccentric-pinfiofthe slotted pitman-head c, the screw 1', screwing in said pitman-head 0, to increase or diminish the stroke of said pitman-head, the pitman 0, supporting said pitman-head,the oil-pump d, operated by said pitman, the pin y, extending from said pitman c, the spindle 1), having a projection, to, against which said pin 3 operates, and thespring-valveo, connected with said spindle o and adapted to open and close alternately the opening leading from the oil-pump to its supplying reservoir, substantially as shown and described.

7. In a petroleum-engine, the oil supply pipe (1 and the heating-pipe 1), into which said pipe a discharges, in combination with the 7 igniting-pipe 19, into which said pipe 19 opens, 6 substantially as shownand-described.

8. In a petroleum-engine, the oil suppl pipe .11, the heating-pipe 1 into which sai pipe at discharges, and theigniting-pipe 12, into which said pipe 10 opens,'in combination with the discharge-pipe a, leading from said igniting-pipe p to thechannel 0, the cylinder-head F, provided with said channel 0, and having an opening, 0 adapted to be connected with said igniting-pipe p, and the air-supply pipe h,having a valve, 9, and leading into said channel o, substantially as shown and described.

' 9. In a petroleum-engine, the oil supply pipe a, the heating-pipe p, intowhich said pipe a discharges, and the igniting-pipe p,into' which said pipe 1) opens, in combination with the discharge-pipe a, leading from said igniting-pip'e 10 into the channel 0', and also provided with a check-valve,a, the cylinder-head F, provided with said channel 0, and having the opening 0 adapted to be engaged with said ignitingpipe 1), the air-supply pipe h, having a valve, '9, and leading into said channel o, and the valve n, for connecting said channel 0 with the igniting-pipe p, and disconnecting it from the same, substantially as shown and described.

ADOLF SPIEL.

Witnesses: B. RoI,

ARTHUR MARKS. 

